McGraw asked the man, "Are you a stalker?" before apparently grabbing the camera.
The Morrisey campaign accused McGraw of assaulting the staffer and demanded a public apology, which McGraw did not give.
Morrisey said that McGraw has "impaired judgment" and has repeatedly challenged him to a public debate.
"It is not appropriate for the attorney general of West Virginia to debate whether or not we ought to follow the law," McGraw said during a Gazette Editorial Board meeting last month, seconds after snubbing another of Morrisey's debate requests.
Morrisey's criticisms of McGraw's long tenure at times echoed those levied by the attorney general's opponents in previous elections. He accused McGraw of disbursing settlement money to gain favor with voters and vowed that his office would ask the Legislature to appropriate all settlement awards.
Morrisey also said he would not promote himself by using taxpayer funded "trinkets" and public advertisements and promised to implement a competitive bidding process when the office considers hiring outside lawyers to handle cases.
In 1994, McGraw filed a lawsuit against 23 cigarette companies in an effort to eliminate the companies' advertising to young people. The companies eventually agreed to a $1.7 billion settlement.
In 2001, McGraw sued Purdue Pharma, the maker of the powerful painkiller Oxycontin on allegations that the company pushed the drug doctors who prescribe it to undeserving patients. He negotiated a $10 million settlement with that company.
McGraw has also targeted out-of-state lenders who allegedly prey on West Virginia borrowers by ignoring lending laws.
Last month, a South Dakota lending company accused of using its connection to an American Indian tribe to charge West Virginia consumers towering interest rates agreed to pay $135,000 to 120 West Virginians.
In June, McGraw filed a civil action in Jefferson County that accused a Virginia-based auto loan company of threatening consumers charging illegal interest rates.
Reach Zac Taylor at zachary.tay...@wvgazette.com or 304-348-5189.